Nitrosococcus nitrosus Dataset NCBI Taxonomy Rank SPECIES Classification phylum Pseudomonadota class Gammaproteobacteria order Chromatiales family Chromatiaceae genus Nitrosococcus species Nitrosococcus nitrosus Name Synonyms "Micrococcus nitrosus" Migula 1900 "Nitrosocystis coccoides" Starkey 1948 Micrococcus nitrosus Nitrosococcus nitrosus (Migula 1900) Buchanan 1925 Nitrosocystis coccoides Homonyms Nitrosococcus nitrosus Nitrosococcus nitrosus (Migula 1900) Buchanan 1925